CVE-2026-116825

MEDIUM 6.5

YesWiki from 4.6.2 before 4.7.0 HTTP Signature Replay via ActivityPub Inbox

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

YesWiki from 4.6.2 before 4.7.0 lacks replay protection in HttpSignatureService::verifySignature(), which never validates the Date header or tracks seen signatures. Attackers who capture a signed request to the /api/forms/{formId}/actor/inbox endpoint can replay it later to re-execute Delete, Update, Follow, or Undo actions.

CWE	CWE-294
Vendor	yeswiki
Product	yeswiki
Published	Oct 26, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

Low

Affected Versions

YesWiki / yeswiki

4.6.2 < 4.7.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/YesWiki/yeswiki/security/advisories/GHSA-7m9j-h553-397x vulncheck.com: https://www.vulncheck.com/advisories/yeswiki-from-4.6.2-before-4.7.0-http-signature-replay-via-activitypub-inbox

Credits

🔍 manus-pi 🔍 manus-use